| A | B |
|---|
| How many species of amphibians are alive today? | about 2,500 different species |
| Describe some advantages for the first amphibians. | They could cross over land to new water sources .... they reached new food sources ... they escaped their aquatic predators .... |
| Are most amphibians ectotherms or are they warm-blooded(endotherms)? | ectotherms |
| How many chambers are in an amphibian's heart? | three |
| Describe the type of scales and claws found on amphibians. | They have neither scales nor claws. |
| What is found in the skin of amphibians that they use for protection? | poison |
| Describe four methods of breathing used by amphibians. | gills, lungs, through their skin and using the mouth lining |
| Amphibians have small ribs and no diaphragm, so how do they force air in and out of their lungs? | use the skin on their chin to pump air in and out of their lungs |
| Describe the eggs of amphibians. | they have no shell ... only a jelly-like coating |
| What do most amphibians do to survive the winter? | hibernate |
| Describe a visible difference between a salamander and a newt. | newts have rough, grainy skin and salamanders have smooth skin |
| Which is more toxic ... a salamander or a newt? | a newt |
| Where do toads hold their poison? | in the bumps of their skin |
| Where do frogs hold their poison? | in folds along their backs |
| Which has longer legs ... a frog or a toad? | a frog |
| Name our common, local newt. | the California Newt |
| Why does our California Newt raise its head and tail when threatened? | to expose the orange, warning color underneath |
| Name our common, local salamander that looks like a worm with tiny legs. | the California Slender Salamander |
| Name our common, local salamander that is brown with small yellow spots. | the Arboreal Salamander |
| Name our common, local toad. | the Western Toad |
| Describe the mating call of the male Western Toad. | it sounds like the peeping of a baby chicken |
| Name our common, local frog that is tiny with a black stripe over its eyes. | the Pacific Treefrog |
| Describe the mating call of the male Pacific Treefrog. | a loud, "kreck-ek" |
| Name our large, common, local frog with the big eardrums. | the Bullfrog |
| Describe the mating call of the male Bullfrog. | a loud, deep "jug-o-rum" |
